PIRSA:12090060

Spectral distortions of the CMB and what we might learn about early universe physics

Chluba, J. (2012). Spectral distortions of the CMB and what we might learn about early universe physics. Perimeter Institute. https://pirsa.org/12090060

Chluba, Jens. Spectral distortions of the CMB and what we might learn about early universe physics. Perimeter Institute, Sep. 11, 2012, https://pirsa.org/12090060 

          @misc{ pirsa_PIRSA:12090060,
            doi = {10.48660/12090060},
            url = {https://pirsa.org/12090060},
            author = {Chluba, Jens},
            keywords = {Cosmology},
            language = {en},
            title = {Spectral distortions of the CMB and what we might learn about early universe physics},
            publisher = {Perimeter Institute},
            year = {2012},
            month = {sep},
            note = {PIRSA:12090060 see, \url{https://pirsa.org}}
          }

Jens Chluba University of Manchester

Talk number PIRSA:12090060
DOI 10.48660/12090060
Collection
Talk Type Scientific Series
Subject

Abstract

The spectrum of the cosmic microwave background (CMB) is known to be extremely close to a perfect blackbody. However, even within standard cosmology several processes occurring in the early Universe lead to distortions of the CMB at a level that might become observable in the future. This could open an exciting new window to early Universe physics. In my talk I will then explain in more detail why the cooling of matter in the early Universe causes a negative mu- and y-type distortion and how the damping of primordial small-scale perturbations before recombination could allow placing interesting constraints on different inflationary models.